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From: Mikko <mikko.levanto@iki.fi>
Newsgroups: comp.lang.c
Subject: Re: D correctly simulated by H cannot possibly reach its own line 06 and halt
Date: Fri, 31 May 2024 16:33:24 +0300
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On 2024-05-30 14:55:24 +0000, olcott said:

> typedef int (*ptr)();  // ptr is pointer to int function in C
> 00       int H(ptr p, ptr i);
> 01       int D(ptr p)
> 02       {
> 03         int Halt_Status = H(p, p);
> 04         if (Halt_Status)
> 05           HERE: goto HERE;
> 06         return Halt_Status;
> 07       }
> 08
> 09       int main()
> 10       {
> 11         H(D,D);
> 12         return 0;
> 13       }
> 
> The left hand-side are line numbers of correct C code.

The C standard specifies that the first line of a program
is line number 1.

-- 
Mikko